Characterization of the Sensorimotor Rhythm in 4-Month-Old Infants Born at Term and Premature

dc.creatorRoca‑Stappung, Milene
dc.creatorMoguel‑González, Minerva
dc.creatorFernández, Thalía
dc.creatorHarmony, Thalía
dc.creatorMendoza‑Montoya, Omar
dc.creatorMarroquín, José Luis
dc.creatorRuiz‑Correa, Salvador
dc.creatorDíaz‑Comas, Lourdes
dc.creatorOtero‑Ojeda, Gloria
dc.date2018-03-15T09:54:09Z
dc.date2018-03-15T09:54:09Z
dc.date2017-07-22
dc.date.accessioned2023-07-20T13:06:31Z
dc.date.available2023-07-20T13:06:31Z
dc.identifier1090-0586
dc.identifierhttp://hdl.handle.net/20.500.11799/80042
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/7716670
dc.descriptionThe sensorimotor rhythm (SMR) is an electroencephalographic rhythm associated with motor and cognitive development observed in the central brain regions during wakefulness in the absence of movement, and it reacts contralaterally to generalized and hemibody movements. The purpose of this work was to characterize the SMR of 4-month-old infants, born either healthy at term or prematurely with periventricular leukomalacia (PVL). Two groups of infants were formed: healthy and premature with PVL. Their electroencephalograms (EEGs) were recorded in four conditions: rest, free movement, right-hand grasping and left-hand grasping, in order to explore general reactivity to free movement and contralateral reactivity in hand-grasping conditions. Associations between SMR, and cognitive and motor performance were analyzed. The healthy infants showed a SMR between 5.47 and 7.03 Hz, with clear contralateral reactivity to free movement and right-hand grasping. However, the premature infants with PVL did not show enough electroencephalographic characteristics to evidence the presence of SMR. Poor performance, characteristic of children with PVL, was related to low-frequency SMR, while good performance was associated with a higher frequency rhythm in the left hemisphere. The presence of SMR in the group of healthy infants could be considered a sign of health at this age. Thus, poor SMR evidence in the EEG of infants with PVL is probably a sign of brain immaturity or brain dysfunction. Our results provide data on infant SMR development that is needed to design neurofeedback protocols for infants with PVL.
dc.descriptionCONACYT proyecto 166772
dc.languageeng
dc.publisherSpringer
dc.relationDOI 10.1007/s10484-017-9370-4;
dc.rightsembargoedAccess
dc.rightshttps://creativecommons.org/licenses/by-nc-nd/4.0/
dc.rightsembargoedAccess
dc.rightshttps://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectSensorimotor rhythm
dc.subjectHealthy infants
dc.subjectPremature infants
dc.subjectPeriventricular leukomalacia
dc.subjectBrain development
dc.subjectBrain injury
dc.titleCharacterization of the Sensorimotor Rhythm in 4-Month-Old Infants Born at Term and Premature
dc.typeArtículo


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